Splice-bar for electrically-welded joints.



H. F. A- KLEINSGHMIDT. SPLICE BAR. FOR BLEOTRIOQLLY WBLDED JOINTS.

APPLICATION FILED SBPT.14, 1908. 991,726.

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Patented May 9, 1911.

HENRY F. A. KLEINSCHMIDT, OF JOHNSTOWN, PENNSYLVANIA, ASSIGNOR TO. THE

LOBAIN STEEL COMPANY, A CORPORATION OF PENNSYLVANIA.

SPLICE-BAR FOR ELECTRIfJALLY-WELDED JOINTS.

Specification of Letters Iatent.

Patented-May 9, 1911.

Application filed September 14, 1908. Serial No. 452,865

To all whom it may concern:

Be it known that I, HENRY F. A. KLEIN- sormnn'r, of J ohnstown, in the county of Cambria and State of Pennsylvania, have improvement in splice bars for electrically welded joints'in which the two members in alinement with each other are to be held together by means of splice bars welded to the sideso-f these members.

My invention particularly relates to splice bars for electrically welded railjoints, which joints are used to make what is known to the art'as a continuous rail, and is designed to provide a splice having means for insuring a uniform weld under varying conditions,

such as unevenness of surface of the splice 7 bars, orrails;

Referring to the accompanying drawings, Figure '1, 1s a vertical section on the-line II of Fig. 2. Fig. 2 is a longitudinal section on the line IL-II of Fig. 1. Fig. 3

is a side elevation of'my improved splice bar. Fig. 4', is a sectional view on the line IVIV of Fig. 3.

A and A, are two railmembers which are held together by means of the splice bars B-B on each' side of the webs C-C of the respective rail members A-A.

The splice bars B-B are each provided with the three series of projections b, b. The projections 6 being considerably higher "than the projections b, and as will be noted by reference to Fig. 3, the face thereof is considerably less in area.

The two members which are to be welded together, which in this case are shown to be two rail members, are placedin alinement with each other, and the splice bars are placed on each side of the webs of'the rail members, and are held in position by any well known method. The projections b of the splice bars B, are held in contact with the webs of the rail. The usual welding current is then passed fromsplice bar to splice bar through the projections b, and the web of the rail until it has been raised to what is known as the welding heat, after which the proper pressure is applied,

' scribed.

to form the weld, this pressure being sufficient to compress or to force the projections 72 into the webs of the rails, and form a perfect weld therewith. The projections 12 will also contact with the webs and may also be forced into the webs, but not sufliciently to bring the'body of the splice bar into contact with the webs.

The single projection on a splice bar is well known to the art, its disadvantage being that a predetermined amount of pres- .sure is always applied to make the weld,

while the area of the bar under pressure will vary, due to the uneven surface of the bars, which will present a surface of varying area under pressure, and make an unequal weld. In my improved joint, the area under pressure, which 'is the area of the projections 12, is always constant. Therefore, each weld is made under the same conditions, as the pressure is always equal and the area under pressure is also constant.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. A splice bar for-electrically welded .joints having projections. forming contact tact faces, said aces being arranged in different parallel planes; substantially as der 3. A splice bar for electrically welded joints having a plurality of projections forming contact faces, with a plurality of contact faces in different parallel planes on each of said projections; substantially as described.

4. A splice bar for electrically welded joints having at least two projections on one face thereof each projection having at least two contact faces thereon, said faces being arranged in different planes; substantially as described. 4 r

5. A splice bar for electricallywelded joints having three projections on one face thereof, each of said projections having two parallel contact faces thereon disposed in different planes; substantially as described.

6. A splice bar for electrically welded joints having three projections on one face, each of said projections having a plurality of Contact feces arranged in different planes; heights from the face of the splice her; sub- 10 substantially as described. stantially as described.

7. A splice ha r for electrically Welded In testimony whereof, I'have affixed my JOiIltS hevin three projecltions on one of the signature in presence of two witnesses. -5 aces, the em projections iaving their great- T L ,1 est length in line With the-splice bar and a KLEILSLHMIDL central projection having its greatest length Witnesses: transversely of the splice bar, each of said L. OCQNNELL, "projections having two surfaces of different A H. W. SMITH. 

